DOCSLIB.ORG

2020Grape Fungicide Spray Guide FINAL

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
2020Grape Fungicide Spray Guide FINAL Plant Pathology Series No. 147 February 2020 Melanie L. Lewis Ivey and Rachel Kaufman Fruit Pathology Program Department of Plant Pathology The Ohio State University-Wooster Campus Wooster, OH Revised January 2020 Table of Contents Table of Contents ............................................................................................................... 2 General Comments ............................................................................................................ 3 Fungicide Spray Program .................................................................................................. 5 Dormant ........................................................................................................................ 5 Bud break to Pre-bloom ................................................................................................ 6 Immediate pre-bloom to early bloom ............................................................................ 8 First and Second post-bloom ........................................................................................ 9 Third and Fourth post-bloom ........................................................................................ 10 Fifth post-bloom to Veraison ......................................................................................... 13 Post-harvest ................................................................................................................. 13 Product, FRAC, PHI and REI Table ................................................................................... 14 Spray Program-At-a-Glance .............................................................................................. 16 Stages of Grape Berry Development ................................................................................. 16 Acknowledgements ............................................................................................................ 17 Contact Information ............................................................................................................ 17 2 General Comments 1. All spray programs should be designed to enhance an integrated disease management program. Very rarely do chemicals alone prevent or slow disease to a level that minimizes economic losses. There is no single chemical that is effective against all foliar diseases, which means that a combination of products in a spray program is necessary to optimize disease management. 2. A spray program should be designed with the critical periods of target diseases in mind. For example, in anthracnose is a problem in the vineyard, dormant fungicide applications are very important for season long control. For successful Phomopsis control, early season fungicides (1 to 5 inch shoot growth) are critical. After bloom, the threat of Phomopsis infection is greatly reduced. The period from immediate pre-bloom through 4 to 5 weeks after bloom is the MOST CRITICAL PERIOD for controlling fruit infection by black rot, powdery mildew and downy mildew. Four to five weeks after bloom, the fruit become resistant to black rot, powdery mildew and downy mildew; however, the leaves and rachises (cluster stems) remain susceptible to both powdery and downy mildew for the rest of the season. Therefore, fungicide protection against both downy and powdery mildew may be required through harvest. For tight cluster Vinifera grape varieties an additional fungicide treatment should be added during bloom to protect against Botrytis bunch rot. 3. A spray program should be thoughtfully developed to prevent and slow the development of fungicide resistant pathogens in the vineyard. Fungicides that have a site-specific mode of action are classified as medium to high risk for fungicide resistance development. Fungicides with Fungicide Resistance Action Committee (FRAC) codes or numbers 1, 2, 3, 4, 7, 9, 10, 11, 13, 16, 43, 47, 49, U06, and U08, are medium to high risk fungicides and no more than two sequential applications of a high-risk fungicide should be applied before alternating to a fungicide with a different mode of action. Do not overuse fungicides (there are restrictions on how frequently high-risk fungicides can be applied) and only apply fungicides at the recommended manufacturer rates. It is unlawful to apply fungicides in a manner that is inconsistent with the product label. The powdery mildew, downy mildew and Botrytis bunch rot fungi are the most problematic with respect to fungicide resistance problems on grapes. In 2019, powdery mildew resistance to FRAC 11 (QoI inhibitors or strobilurins) fungicides was confirmed in Ohio. Usually the first indication of resistance in the vineyard is when a fungicide does not provide the same level of control compared to previous years, especially on susceptible varieties. In the worst- case scenario, the material provides no control and the crop is lost due to disease. It is important to continually monitor (scout) the vineyard for signs and symptoms of reduced disease control. There are no commercial laboratories that screen pathogens for fungicide resistance. If you suspect that resistant fungi are present in the vineyard please contact Dr. Melanie Lewis Ivey for assistance in confirming resistance and developing an alternative fungicide spray program to slow or prevent additional resistance development in your vineyard. 4. Be aware of incompatible chemicals. Mixing pesticides can save time and labor costs but not all pesticides are compatible and may result in undesirable reactions. For example, the mixing of incompatible chemicals may reduce the effectiveness of one or more of the 3 active ingredients in the mixture, cause an unwanted (and sometimes dangerous) chemical reaction, or injure the plant (i.e. phytotoxicity). It is illegal to mix pesticides with other products (such as other pesticides, adjuvants, or carriers) when such mixtures are expressly prohibited on the label. The following combinations of fungicides or plant protectants can cause serious vine injury when applied to vines at the same time or within 14 days of each other: • Horticultural oils (i.e. JMS Stylet Oil) with sulfur • Horticultural oils (i.e. Stylet Oil) with Captan • Seven XLR (insecticide) with Captan 5. Spray guides are recommendations only. Product efficacy may vary depending on disease pressure, weather conditions, product coverage, the presence of resistant pathogen populations and/or the grape variety. For any given disease and at any specific application timing there are many registered fungicide options. The fungicides listed in this program are recommendations only and this guide does not include all of the fungicides currently registered for use on grapes. The cost of a fungicide per application and acre can vary significantly. The final fungicide spray program that you develop should consider the cost of specific fungicides selected as well as the targeted diseases and the potential for resistance development in the pathogen population. In this guide, the estimated relative cost of each fungicide per acre per application is provided based on 2019 retail costs (see Table below). The cost of fungicides will vary depending on the supplier and the quantity purchased. Relative Cost Estimates Per Acre $10-20 $ $20-30 $$ $30-40 $$$ $40-above $$$$ 4 Grape Fungicide Spray Program-2020 This program emphasizes fungicide resistance management and is intended to provide simultaneous protection against anthracnose (ANTH), Phomopsis cane and leaf spot (PHOM), black rot (BR), powdery mildew (PM), and downy mildew (DM). Specific recommendations for Botrytis bunch rot (BOT) and Phytophthora crown and root rot (PHYT) are also included in this program. The following fungicides should NOT be applied to Concord grapes as crop injury may occur: • Flint Extra • Inspire Super • Intuity • Luna Sensation • Pristine [Should also not be applied to Noiret.] • Quadris Top • Sulfur [Should not be applied to sulfur sensitive vinifera varieties.] • Revus Top Dormant Growth Stage Product (rate/A) FRAC Relative cost Target Code (per Diseases acre/application) Dormant Sulforix (1-2 gal) M $$ ANTH Ridomil Gold SL (3.6 pt) 4 $$$$ PHYT 5 Bud Break to Pre-bloom Growth Stage Product (rate/A) FRAC Relative cost Target Diseases Code (per acre/application) Bud break to Mancozeb 75DF (3 lb) M $ BR, PHOM pre-bloom or Captan 50WP (3 lb) M $ BR, PHOM or Ziram 76DF (3-4 lb) M $ BR, PHOM ANY OF THE ABOVE PLUS ONE OF THE FOLLOWING: Aprovia (8.6-10.5 fl oz) 7 $$ ANTH, PHOM, or BR, PM Endura 70 WG (4.5 oz) 7 $$ BOT, PM or Fracture (20.5-36.6 fl oz) M $$$$ BOT, PM or ANTH, BOT, BR, Inspire Super (16-20 fl oz) 3+9 $$$ PM or BOT, PM Intuity (6 fl oz) 11 $$$ or BOT, PM JMS Stylet Oil (1-2%) - $ or ANTH, BOT, PM Kenja 400SC (20-22 fl oz) 7 $$$$ or BOT, BR, PHOM, Luna Sensation (4.0 – 7.6 fl oz) 7+11 $$$$ PM or PM, DM LifeGard (4.5 oz/100 gal) - or PM Merivon Xemium (4 – 5.5 fl oz) 7+11 $$$$ or ANTH, BR, PM Mettle (3-5 fl oz) 3 $ or PM Potassium salts - $ or PM Procure 480 SC (4-8 fl oz) 3 - or PM Quintec 2.08F (4 – 6.6 fl oz) 13 $ 6 Growth Stage Product (rate/A) FRAC Relative cost Target Diseases Code (per acre/application) or ANTH, BR, PM Rally 40WSP (4 fl oz) 3 $ or PHOMP, PM Sulfur M $ or BR, PM TebuStar 45WSP (4 oz) 3 $ or BR, PM Topsin M WSB (0.75-1.5 lb) 1 $ or PM Torino 0.85F (3.4 fl oz) U6 $$ or PM Vivando 2.5 F (10.3-15.4 fl oz) U8 $$$$ OR ONE OF THE PRODUCTS BELOW BY ITSELF Abound (10-15.5 fl oz) 11 $$ BOT, BR, DM, or PHOM, PM Flint Extra (1.5-4 oz) 11 $$ BOT, BR, DM, or PHOM, PM LifeGard (4.5
Load more

Recommended publications
  • Elicitation of Grapevine Defense Responses Against Plasmopara Viticola , the Causal Agent of Downy Mildew
    Elicitation of grapevine defense responses against Plasmopara viticola , the causal agent of downy mildew Dissertation zur Erlangung des Doktorgrades (Dr. rer. nat.) der Naturwissenschaftlichen Fachbereiche der Justus-Liebig-Universität Gießen Durchgeführt am Institut für Phytopathologie und Angewandte Zoologie Vorgelegt von M.Sc. Moustafa Selim aus Kairo, Ägypten Dekan: Prof. Dr. Peter Kämpfer 1. Gutachter: Prof. Dr. Karl-Heinz Kogel 2. Gutachterin: Prof. Dr. Tina Trenczek Dedication / Widmung I. DEDICATION / WIDMUNG: Für alle, die nach Wissen streben Und ihren Horizont erweitern möchten bereit sind, alles zu geben Und das Unbekannte nicht fürchten Für alle, die bereit sind, sich zu schlagen In der Wissenschaftsschlacht keine Angst haben Wissen ist Macht **************** For all who seek knowledge And want to expand their horizon Who are ready to give everything And do not fear the unknown For all who are willing to fight In the science battle Who have no fear Because Knowledge is power I Declaration / Erklärung II. DECLARATION I hereby declare that the submitted work was made by myself. I also declare that I did not use any other auxiliary material than that indicated in this work and that work of others has been always cited. This work was not either as such or similarly submitted to any other academic authority. ERKLÄRUNG Hiermit erklare ich, dass ich die vorliegende Arbeit selbststandig angefertigt und nur die angegebenen Quellen and Hilfsmittel verwendet habe und die Arbeit der anderen wurde immer zitiert. Die Arbeit lag in gleicher oder ahnlicher Form noch keiner anderen Prufungsbehorde vor. II Contents III. CONTENTS I. DEDICATION / WIDMUNG……………...............................................................I II. ERKLÄRUNG / DECLARATION .…………………….........................................II III.
    [Show full text]
  • Downy Mildew 2018
    Downy Mildew The recent weather pattern was a big relief for many dryland farmers in Texas, but for grape growers in the eastern half of the state and especially the Gulf Coast, tropical moisture in the summer can spell big problems with downy mildew. Downy is one of few fungal diseases that can cause serious damage all season long, and each year we hear at least one report of total crop loss from downy. The warm and wet conditions this week have been ideal for downy mildew infections so if you have already seen downy in your vineyard this year then there is an extremely high probability of a reoccurring infection. If you have not seen downy mildew yet this year, there is a still a very good chance that an infection can or already has occurred. Even a very small, unnoticeable infection can explode into an outbreak under the right conditions. Make sure that your vineyard is properly protected! Young berries are highly susceptible to direct infections by downy mildew, but become increasing resistant with age. However, downy can infect all of the green parts of a grapevine season long. Infections this time of the year can lead to significant defoliation which in turn can severely reduce fruit quality and vine health. Favorite vineyard defoliated from downy mildew infection. The foliar symptoms of downy can vary quite a bit based on cultivar and tissue age so know what to look for when you are scouting your vineyard. You can visit the Texas A&M AgriLife Extension Viticulture & Enology webpage to view a photo gallery with more than fifty photos of downy mildew infections.
    [Show full text]
  • Extension Plant Pathology Update
    Extension Plant Pathology Update April 2013 Volume 1, Number 3 Edited by Jean Williams-Woodward Plant Disease Clinic Report for March 2013 By Ansuya Jogi and Jean Williams-Woodward The following tables consist of the commercial and homeowner samples submitted to the plant disease clinics in Athens and Tifton for March 2013 (Table 1) and one year ago in April 2012 (Table 2). Sample numbers are starting to pick up, but many of the problems we’ve seen in March were due to abiotic disorders such as cultural and/or environmental stresses (i.e. cold injury, past drought stress, poor root growth, etc.). Likely, the recent colder temperatures have slowed plant growth and plant disease development. We did have a few interesting samples, including cedar rusts and bulb mites on tulip (see pages 6 and 7). Looking ahead based upon April samples from last year and current weather conditions, we could expect more fungal leaf spot diseases, fire blight, rust, powdery mildew and downy mildew diseases. Table 1: Plant disease clinic sample diagnoses made in March 2013 Sample Diagnosis Host Plant Commercial Sample Homeowner Sample Arborvitae Decline; Dieback, Abiotic disorder Azalea Cultural/Environmental Problem, Abiotic disorder Bentgrass Anthracnose (Colletotrichum cereale) Blueberry Colletotrichum sp./spp. Cultural/Environmental Problem, Unknown, General Abiotic disorder Boxwood Root Problems, Abiotic disorder Camelia Camellia Petal; Flower Blight (Ciborinia camelliae) Root Problems, Abiotic disorder Environmental Stress; Problem, Abiotic disorder Tea
    [Show full text]
  • U.S. EPA, Pesticide Product Label, HEADLINE FUNGICIDE, 04/28/2006
    71rA J 15(P tJ-f/Ql(S 1~CXXe:. ..r~O sr<'l>~ i ft t UNITED STATES ENVIRONMENTAL PROTECTION AGENCY ....~~~ WASHINGTON, D.C. 20460 ~., ",t ""'~i.PRo1f.~ OFFICE OF PREVENTION, PESTICIDES AND TOXIC SUBSTANCES Charlotte Sanson APR 2. 8 2llXl BASF Corporation 26 Davis Drive Research Triangle Park, North Carolina 27709 Subject: Headline® Fungicide EPA Registration No. 7969-186 Your master label amendment application dated 6/17/04 and re-submissions dated 6/25/04; 9/27/04; 2/15/05; 3/8/05; 2/22/06; 4/6/06; 4/12/06; 4/13/06 Dear Ms. Sanson, We have reviewed the subject amended labeling, submitted in connection with registration under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), as amended. The amended labeling is acceptable, provided that you: 1. Make the following change to the label: * In the explanatory sentence at the start of Table 1 (page 29) and Table 2 (page 31), change "predicated" to "predicted". 2. Submit one copy of your final printed label before you release product bearing this amended labeling for shipment. If you have any questions about this letter, please contact John Bazuin at (703)305-7381 or [email protected]. Sincerely r ) . Tony Ki Acting Product Manager (22) Fungicide Branch Registration Division (7505C) Attachment: Label copy stamped "ACCEPTED with COMMENTS" a·BASF I GROUP'" FUNGICIDE The Chemical Company ACCEPtED with COHMENTS In EPA Leitei' Dated PPR z 6 Zoo;, u............. r. ?' 'h, ,..,..,...... ......11 "if .. .. = nded. tar • ....doIde rewlalereclaaderEPA .... No. '7 Cf~ q - IS ~ fungicide For use in disease control and plant health in the following crops: Barley, citrus fruit, com (all types), dried shelled peas & beans, edible podded legume vegetables, grass grown for seed, mint, peanut, pecan, rye, soybean, succulent shelled peas and beans, sugar beet, sunflower, tuberous and corm vegetables, wheat, and triticale.
    [Show full text]
  • Transactions of the Illinois State Academy of Science
    TRANSACTIONS OF THE ILLINOIS STATE ACADEMY OF SCIENCE Supplement to Volume 101 100th Annual Meeting 4-5 April 2008 Illinois Natural History Survey Celebrating its 150th Anniversary & University of Illinois at Urbana-Champaign Illinois State Academy of Science Founded 1907 Affiliated with the Illinois State Museum, Springfield 1 TABLE OF CONTENTS Schedule…………………………………………………………………………………………1 Keynote Speaker Biographical Sketch and photo……………………………………………2 Sessions, Presenters & Locations Poster Presentations Botany…………………………………………………………………………………………….3 Cell, Molecular & Developmental Biology………………………………………………………4 Chemistry…………………………………………………………………………………………5 Environmental Science…………………………………………………………………………...6 Health Sciences…………………………………………………………………………………...7 Microbiology……………………………………………………………………………………..8 Science, Mathematics & Technology Education…………………………………………………8 Zoology…………………………………………………………………………………………...9 Oral Presentations Botany……………………………………………………………………..12 Cell, Molecular & Developmental Biology……………………………………………………..14 Chemistry………………………………………………………………………………………..14 Environmental Science………………………………………………………………………….15 Health Sciences………………………………………………………………………………….16 Science, Mathematics & Technology Education………………………………………………..16 Zoology……………………………………………………………………………………….....16 Abstracts Poster Presentations Botany…………………………………………………………………………………………...19 Cell, Molecular & Developmental Biology…………………………………………………..…26 Chemistry………………………………………………………………………………………..31 Environmental Science…………………………………………………………………………..32 Health Sciences………………………………………………………………………………….40
    [Show full text]
  • US EPA, Pesticide Product Label, PRISTINE FUNGICIDE, 06/04/2012
    UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 OFFICE OF CHEMICAL SAFETY AND POLLUTION PREVENTION Dr. Khalid H. Akkari BASF Corporation, Agricultural Products JUN 0 4 2012 26 Davis Drive P.O. Box 13528 Research Triangle Park, NC 27709 Subject: Pristine Fungicide EPA Reg. No. 7969-199 Your letter dated April 13, 2012 EPA Decision Number: 464483 Dear Dr. Akkari: The master labeling and supplemental labeling referred to above, submitted in connection with registration under the Federal Insecticide, Fungicide, and Rodenticide Act, as amended, to add a restriction for use on blueberries in California, is acceptable. Stamped copies of the master and supplemental label "Accepted" are enclosed for your records. These labels supersede all other previously accepted labels. Please submit one copy of the final printed labels before the product is released for shipment. If you have any questions please contact Heather Garvie by phone at: 703-308-0034 or via email at: [email protected] . Sincerely, Marcel Howard Acting Product Manager (20) Fungicide Branch (7504P) Registration Division BASF I Group Fungicide The Chemical Company ACCEPTED JUN 0 4 2012 Under the Federal insecticide, Fungicide, and Rodenticide Act, as amended, for the pesticide registered under EFA Reg No PristinFUNGICIDeE For use in disease control and plant health in the following crops: berries, bulb vegetables, carrots, celery, cotton, cucurbit vegetables, dry beans, grapes, hops, leafy greens, leafy petioles, peanuts, pistachios, pome fruits, soybeans, spinach, stone fruits, strawberries, tree nuts, and tropical fruits Active Ingredients: pyraclostrobin: (carbamic acid, [2-[[[1-(4-chlorophenyl)- 1H-pyrazol-3-yl]oxy]methyl]phenyl]methoxy-, methyl ester) 12.8% boscalid: 3-pyridinecarboxamide,2-chloro-N-(4'-chloro(1,1'-biphenyl)-2-yl)- ...
    [Show full text]
  • U.S. EPA, Pesticides, Label, Headline SC, 6/13/2011
    ~ ( 7L UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 OFFICE OF CHEMICAL SAFETY AND POLLUTION PREVENTION Charlotte Sanson BASF Corporation PO Box 13528 26 Davis Dr. Research Triangle Park, NC 27709 JUN 1 3 2011 Subject: Headline SC fungicide EPA Registration No. 7969-289 Decision No. 445927 Submission Date: May 6, 2011 Labeling Amendment Dear Ms Sanson: The labeling referred to above, submitted in connection with registration under the Federal Insecticide, Fungicide, and Rodenticide Act, as amended is acceptable provided you make the following changes: 1. On page 8, under Ground Application Directed or Banded Sprays, within the "example" section, delete the denominator "60 inches total row width" under "45 inches sprayed bed width." 2. On top of the Supplemental Labels include an expiration date which is 3 years from the date stamp of this letter Submit one copy of your final printed labeling before you release the product for shipment. A copy ofthe labeling stamped "Accepted with Comments" is enclosed for your records. If you have any questions, please contact Dominic Schuler at (703) 347-0260 or via email at [email protected]. Sincerely, ony Kish roductManager(22) ngicides Branch Registration Division (7504P) 1 L ( ( ---7L Fungicide For use in alfalfa Active Ingredient*: pyraclostrobin: (carbamic acid, [2-[[[1-(4-chlorophenyl)-1 H-pyrazol-3-yljoxyjmethyljphenylj methoxy-, methyl ester) .............................................................................................................................
    [Show full text]
  • LWC Grower Newsletter Fall 2011
    LODI WINEGRAPE COMMISSION IPM RESEARCH NEWSLETTER FALL • 2011 “LODI RULES” – AN EVOLUTION We have just celebrated the twentieth anniversary of the creation a very short list of fungicides and insecticides to having an of the Lodi Winegrape Commission. In its second year the extensive collection of alternatives. Similarly, the list of previ - commission created an integrated pest management program ously unknown pests and diseases continues to grow. As the which was responsible for the 2000 publication of the Lodi focus on wine quality has intensified we are challenged to Winegrower’s Workbook. In 2005 the LWC established produce even better quality grapes. Competition from other California’s first program of sustainable winegrowing standards growing districts encourages us to redouble our efforts or fall known as The Lodi Rules for Sustainable Winegrowing. Since its behind. inception the Lodi Rules program has grown from 6 participants The Lodi Sustainable Winegrowing Program has become an farming less than 1,500 acres to well over 70 growers covering integral part of our grape-growing culture. To say that it has over 24,000 acres. While this quantifiable success is gratifying, made at least a small contribution to the skills of vineyardists it should be remembered that the nature of the program and the worldwide in their striving toward sustainability and conserva - benefits derived from it are diverse and continue to evolve. tion would not be an understatement. The amount of effort that went into creating seventy-five Last year, in recognition of the continuing evolution of the measurable farming standards, peer reviewed by scientists and Rules program, the Winegrape Commission established the Lodi academics, and third party certified, should not be underesti - Rules Committee as a standing committee of the commission.
    [Show full text]
  • Universal Classification of Plant Protection Products According to Their Modes of Action and Their Chemical Structures
    Version 5 – February 2018 Universal classification of plant protection products according to their modes of action and their chemical structures Opening remark: Tables presented in this document are in French. Nevertheless, this explicative introduction is written in English. A full English version of this classification is under progress. We apologize for this temporary inconvenience to English-speaking readers. Pest, disease or weed control involves plant protection products (PPPs), of natural or synthetic origin. Independent classifications of PPPs have been proposed according to their category (fungicides: FRAC; acaricides-insecticides: IRAC; herbicides: HRAC or WSSA). They do not take into account the fact that highly different organisms may share common biochemical targets that can be inhibited by substances with the same modes of action. Furthermore, biocontrol solutions are often partially represented in these classifications, whereas many are registered in France and their use will gradually increase in the coming years. Some of them may face the adaptation of targeted pests, which justifies their inclusion in this nomenclature of PPPs. The unified classification of PPPs presented in this document takes these characteristics into account and assigns one single code to the modes of action registered against plant pathogens, pests (insects and mites) and / or weeds. It includes: ● A unified classification valid for all PPPs, showing the correlation between the R4P, RACs and WSSA group codes. ● A comprehensive list of fungicides, insecticides-acaricides and herbicides classified according to their modes of action, including their general uses, their dates of registration in France, and the resistance cases reported in France and globally ● A classification of active substances affecting the toxicity of PPPs.
    [Show full text]
  • In Vitro Evaluation of Commercial Fungicides Against Some of the Major Soil Borne Pathogens of Soybean
    atholog P y & nt a M l i P c f r o o b l i Journal of a o l n o r g u Navi, et al., J Plant Pathol Microbiol 2016, 7:3 y o J DOI: 10.4172/2157-7471.1000340 ISSN: 2157-7471 Plant Pathology & Microbiology Research Article Open Access In Vitro Evaluation of Commercial Fungicides against Some of the Major Soil Borne Pathogens of Soybean Shrishail S Navi1, Rajasab AH2 and Yang XB1 1Department of Plant Pathology and Microbiology, Iowa State University, Ames, Iowa, USA 2Postgraduate Studies and Research in Botany, Gulbarga University, Gulbarga, Karnataka, India Corresponding Author: Shrishail S Navi, Department of Plant Pathology and Microbiology, Iowa State University, Ames, Iowa, USA, Tel: 5152944517; Fax: 5152949420; E-mail: [email protected] Rec date: March 18, 2016; Acc date: March 29, 2016; Pub date: March 31, 2016 Copyright: © 2016 Navi SS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract Four Strobilurin, two premix of Strobilurin and Triazole, and one pyrazole-carboxamide foliar fungicides were tested in a modified in vitro culture plug technique against Colletotrichum truncatum (CT), Fusarium virguliforme (FV), Macrophomina phaseolina (MP), Pythium irregulare (PI), Rhizoctonia solani (RS), and Sclerotinia sclerotiorum (SS) and three Strobilurin and two premixes against Septoria glycines (SG). Under aseptic conditions, a single 6-mm culture plug of actively growing individual fungus was placed inverted on one end inside periphery of 9-cm PDA plates and on the opposite end 6-mm sterilized blotter disc with 50-μl fungicide solution was placed.
    [Show full text]
  • May 19, 1950, Minutes
    MEETING OF THE BOARD OF TRUSTEES OF TEE UNIVERSITY OF ILLINOIS May 19-20, 1950 The May meeting of the Board of Trustees of the University of Illinois was held in the Mini Union Building, at the Cniversrty, in Urbana, 011 Friday, May 19, and Saturdaj, &lay20, 1950, according to the iollow- iiig shedule: Friday, May 19,8:00 p.m. -Executive session as in Committee of the i?rhole. Saturday, May 20, 9:30 a.m. -Open session. When the Board convened in executive session on Friday- evening, the following members and officers were present: President Wil- liamson, Mr. Fornof, Mr. Herrick, Mr. Hickman, Mrs. Holt, Mr. hlclaughlin, Mr. Xickell, Mrs. Watkins; bfr. Livingston took his place 1% ith the Board during the evening. Provost Griffith was present; also Dr. A. C. Ivy, Vice-president in charge of the Chicago Professional Colleges, Mr. A. J. Janata, Assistant to the President, Mr. H. E. Cunningham, Secretary, Mr. Lloyd Morey, Comptroller, and Dean C. C. Caveny of the Chicago Undergraduate Division. 1121 I122 BOARD OF TRUSTEES [May I9 MATTERS PRESENTED BY PROVOST GRlFFlTH The Board considered the following matters presented by the Provost acting for the ‘President of the University. RATES OF PAY FOR BUILDING TRADES (I) The Board of Trustees has authorized the appointment of a fact-finding com- mittee to make an investigation of wage rates in Piatt County to be paid for con- struction work at Robert Allerton Park and report on the same to the President of the University and to the Board of Trustees. This Committee is composed of one member appointed by the Illinois State Federation of Labor, one member appointed by the President of the University, and a third member selected by the first two; provided that if they do not agree upon a candidate within ten days the Director of the State Department of Public Works and Buildings shall be asked to appoint the third member.
    [Show full text]
  • 2012 Vintage Update: 13 a Pril
    2012 VINTAGE UPDATE: 13 APRIL By Michelle Moyer, Viticulture Extension Specialist; Gary Grove, Plant Pathologist; and Markus Keller, Research Viticulturist 2012 Vintage Updates will be routinely posted on the WSU Viticulture & Enology website, located at: http://wine.wsu.edu/research-extension/articles/ Irrigation, Vine “Bleeding” and Impact on Early Season Development A sure sign of spring is “bleeding” (sap flow) from pruning wounds on grapevines. “Bleeding” is likely caused by root pressure due to sufficient moisture uptake by the vine. Low precipitation during the 2011-2012 winter season has resulted in low soil moisture content this spring for many locations. Insufficient soil moisture which may result in poor root pressure, has and been associated with erratic budbreak, stunted shoot growth, and/or cluster abortion early in the growing season. Are your vines bleeding, and if not, do you know what the soil moisture levels are in your vineyard (either high tech with neutron probes, or low tech by sight and feel)? A) Sufficient soil moisture results in positive root pressure leading to wound Irrigation channels are full for the season, so if your soil moisture content “bleeding”. B) Dry spring pruning is low and you are noticing dry pruning wounds, now would be an wounds may be a sign of insufficient appropriate time to consider a “pre-season” irrigation application. moisture. Photos by Michelle Moyer. New Fungicide Approved for Grape Disease Management The WSDA has approved a new fungicide for disease management (Powdery Mildew and Botrytis Bunch Rot) in wine grapes. Luna Experience, a Bayer product, is a premix of fluopyram and tebuconazole.
    [Show full text]